140439892 has 24 divisors (see below), whose sum is σ = 252252000. Its totient is φ = 68378016.

The previous prime is 140439869. The next prime is 140439911. The reversal of 140439892 is 298934041.

140439892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65859 + ... + 67957.

It is an arithmetic number, because the mean of its divisors is an integer number (10510500).

Almost surely, 2^140439892 is an apocalyptic number.

It is an amenable number.

140439892 is a deficient number, since it is larger than the sum of its proper divisors (111812108).

140439892 is a wasteful number, since it uses less digits than its factorization.

140439892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2535 (or 2533 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 140439892 is about 11850.7338169415. The cubic root of 140439892 is about 519.7926836292.

The spelling of 140439892 in words is "one hundred forty million, four hundred thirty-nine thousand, eight hundred ninety-two".